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Virginia DEQ

Virginia Water Science Center

 
  Duration Plot and Table of 28-Day Average Streamflow
 
02013000 DUNLAP CREEK NEAR COVINGTON, VA
LOCATION.--Latitude 37°48'10", Longitude 80°02'50", North American Datum of 1927,
                    Alleghany County, VA, Hydrologic Unit 02080201.
DRAINAGE AREA.--162 square miles.
PERIOD OF RECORD.--October 1928 to current year. Monthly discharge only for some periods, published in WSP 1303.
DURATION STATISTIC COMPUTATION PERIOD.--All data through September 2015.
REGULATION.--Occasional diurnal fluctuation caused by the draining or filling of small dam located 7.9 miles upstream from the station.
GAGE OPERATION.--U.S. Geological Survey, Virginia Water Science Center.
     Duration Plot with 28-Day Average Streamflow Conditions
Provisional Data Subject to Revision 02013000 plot. DUNLAP CREEK NEAR COVINGTON, VA
Provisional Data Subject to Revision

                    

The current 28-day running-average value for 03/22/2017 is 146.36 cubic feet per second.

  explanation   Percentile Description Duration Plot Description 28 Day 14 Day 7 Day Daily
      Duration Table of 28-Day Average Streamflow
            Flow values in cubic feet per second


                02013000     DUNLAP CREEK NEAR COVINGTON, VA

   Minimum daily flow
   5th percentile
 
   10th percentile
 
   25th percentile
 
 
   Median
 
 
   75th percentile
 
 
 
   90th percentile
 
 
 
   95th percentile
 
 
 
 
   Maximum daily flow
         
Years of record
January
19.2
29.2
45.2
93.9
174
277
406
500
953
 
87
February
21.5
48.3
69.8
135
239
368
510
601
1,000
 
87
March
22.3
90.1
123
198
315
456
628
733
1,140
 
87
April
53.0
91.3
130
193
292
461
641
756
1,160
 
87
May
39.1
61.6
82.8
129
220
337
474
562
1,080
 
87
June
22.9
32.9
38.8
57.2
109
220
346
443
707
 
87
July
13.0
18.5
21.2
27.2
39.8
72.0
144
207
791
 
87
August
12.2
15.1
17.0
21.4
31.1
49.3
97.7
181
551
 
87
September
9.79
13.2
14.8
17.3
23.3
39.4
87.4
130
580
 
87
October
11.2
14.0
15.4
18.2
25.2
51.4
118
164
552
 
86
November
13.4
17.1
19.0
23.5
41.1
110
238
332
704
 
87
December
13.8
21.0
23.5
39.0
101
196
329
456
748
 
87
 
       

The current 28-day running-average value for 03/22/2017 is 146.36 cubic feet per second.

---- Provisional Data Subject to Revision ----

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